大蒜叶枯病是危害大蒜正常生长最常见的主要病害,大蒜在整个生长期都可发生。该病危害大、传染迅速,往往能在短期内即可使蒜苗大面积枯萎直至死亡,造成绝产绝收的灾难性后果。 (一)主要症状 大蒜叶枯病系真菌性病害,主要危害叶片。病害初期,从大蒜叶尖开始逐渐向叶茎发展,并由植株下部向上部蔓延。病斑 Garlic leaf blight is the most common major disease that endangers the normal growth of garlic. Garlic can occur throughout the growing season. The disease is so dangerous that it can be transmitted rapidly and can often wither and kill the garlic seed in large areas in a short period of time, resulting in catastrophic consequences of absolute failure. (A) The main symptoms Garlic leaf blight is a fungal disease, the main hazard leaves. Early disease, garlic leaf tip gradually began to develop from the lower part of the plant to the upper part of the spread. Lesions